Population and pedigree studies reveal a lack of association between the dopamine D sub 2 receptor gene and alcoholism
- National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD (USA)
- Program Resources Inc., Frederick, MD (USA)
Using the dopamine D{sub 2} receptor clone {lambda}hD2G1, Blum et al recently found that the D{sub 2}/Taq 1 allele (A1) was present in 69{percent} of 35 deceased alcoholics but in only 20{percent} of an equal number of controls. To assess this association further, the authors evaluated the D{sub 2}/Taq 1 polymorphism and a single-strand conformation polymorphism detected by polymerase chain reaction and nondenaturing gel electrophoresis (PCR-SSCP) of the 3{prime} noncoding region of the D{sub 2} receptor gene. They studied 40 unrelated white alcoholics, 127 racially matched controls, and two white pedigrees. The Schedule for Affective Disorders and Schizophrenia-Lifetime Version (SADS-L) clinical diagnostic interviews were rated blindly by two clinicians. Alcoholics were subtyped according to age of onset, severity, presence of antisocial personality, and family history. No significant differences in either D{sub 2}/Taq 1 or PCR-SSCP allele frequencies were observed between alcoholics, subpopulations of alcoholics, or controls. The PCR-SSCP polymorphism provided independent information against linkage at the D{sub 2} receptor locus. This study does not support a widespread or consistent association between the D{sub 2} receptor gene and alcoholism.
- OSTI ID:
- 5509534
- Journal Information:
- JAMA, Journal of the American Medical Association; (United States), Vol. 264:24; ISSN 0098-7484
- Country of Publication:
- United States
- Language:
- English
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DOPAMINE
RECEPTORS
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PATHOLOGY
DIAGNOSIS
DNA POLYMERASES
GENOTYPE
PATIENTS
RFLPS
AMINES
AROMATICS
AUTONOMIC NERVOUS SYSTEM AGENTS
CARDIOTONICS
CARDIOVASCULAR AGENTS
DISEASES
DRUGS
ENZYMES
HYDROXY COMPOUNDS
MEMBRANE PROTEINS
NEUROREGULATORS
NUCLEOTIDYLTRANSFERASES
ORGANIC COMPOUNDS
PHENOLS
PHOSPHORUS-GROUP TRANSFERASES
POLYMERASES
POLYPHENOLS
PROTEINS
SYMPATHOMIMETICS
TRANSFERASES
550400* - Genetics